And Metros For All - 1: Have 2 metro lines
And Metros For All - 2: Have 8 metro lines
And Metros For All - 3: Have 15 metro lines
Are You Bus? - 1: Have 3 bus lines
Are You Bus? - 2: Have 10 bus lines
Are You Bus? - 3: Have 25 bus lines
Gather Around - 1: Play 2 multiplayer games
Gather Around - 2: Play 10 multiplayer games
Gone Shopping: Buy a vehicle
Got My Bucket And Spade - 1: Play 2 sandbox games
Got My Bucket And Spade - 2: Play 10 sandbox games
Got My Bucket And Spade - 3: Play 60 sandbox games
Green City: Have no private motoring in the city for 48 game hours
It's How You Use It - 1: Have a line 1,000 meters long
It's How You Use It - 2: Have a line 2,000 meters long
It's How You Use It - 3: Have a line 5,000 meters long
Like Sardines: Transport 1,500 passengers using 2 vehicles in one game week
Metropolis - 1: Have 50,000 citizens in the city
Metropolis - 2: Have 75,000 citizens in the city
Metropolis - 3: Have 100,000 citizens in the city
Modern Days: Complete the campaign Modern Days
Money, Money, Money - 1: Have 150,000 money
Money, Money, Money - 2: Have 300,000 money
Money, Money, Money - 3: Have 1,000,000 money
My Own Fleet - 1: Have 10 vehicles running
My Own Fleet - 2: Have 50 vehicles running

if you cannot download trainer then go to Chrome/Firefox's settings, specifically to the Privacy settings and simply unchecking the "Enable phishing and malware protection" option.

Some Game Trainers are sometimes reported to be a Virus or Trojan,
the most common is a keylogger called HotKeysHook or the file
has been packed/protected with VMProtect or Themida and
is recognized as Win32/Packed.VMProtect or Win32/Packed.Themida.
In ALL cases this is a FALSE ALARM as NONE
of the Game Trainers @ GGMANIA contain known malicious code!!